Planet Phatt Signal Flow - E-Mu Planet Phatt Operation Manual

PROGRAMMING BASICS

PLANET PHATT SIGNAL FLOW

Going back to the block diagram for a single channel we can
re-examine the complete signal path.
Instrument
Sample
Pitch
Start
Instrument
This is the sampled sound wave. The pitch of the instrument can
be modulated by any modulation source. The sample start point
can only be modulated by a velocity or key source (see the next
page).
Tone
Tone is a simple tone control which can be used to brighten or
mute the sound. Tone can only be modulated by a velocity or key
source (see the next page). Key velocity is commonly used to modu-
late the tone so that the harder you play, the brighter the sound
becomes.
Morphing Filter
The Morphing Filter is used to shape the harmonic content of an
instrument. The Fc can be modulated by any source. The auxiliary
envelope is commonly used to dynamically shape the harmonic
content over time. The Q parameter can only be modulated by a
velocity or key source. There are 17 types of filters available. See
page 67 for complete descriptions of each filter type.
DCA
Digitally Controlled Amplifier. Together with the Volume
AHDSR, the DCA is used to shape the volume contour of a sound.
The DCA can be controlled by any modulation source. Key
Velocity is often used as a modulation source for the DCA so that
the harder you play, the louder the sound becomes.
Pan
Adjusts the balance of sound to the left and right channels. Pan
can be modulated by any realtime or note-on modulation source.
48 Planet Phatt Operation Manual
Z-Plane
Filter
Tone
Morph Q
Aux.
Velocity
DAHDSR
DCA Pan
Volume
Volume
AHDSR
R
L